Intangible Assets, Net - Summary of Identifiable Intangible Asset, Net (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2018	Dec. 31, 2017
Schedule Of Finite And Indefinite Lived Intangible Assets [Line Items]
Finite-lived intangible asset, Accumulated Amortization	$ 3,870	$ 2,742
Intangible asset, Effect of currency translation adjustment	(387)	(197)
Intangible assets Cost/Fair Value	11,124	11,394
Intangible assets Impairments		80
Intangible assets, net	7,254	8,572
CDE In- Process Research and Development
Schedule Of Finite And Indefinite Lived Intangible Assets [Line Items]
Indefinite-lived intangible asset, Cost/Fair Value	1,026	1,106
Indefinite-lived intangible asset, Impairments		80
Indefinite-lived intangible asset, Net	1,026	1,026
Licensing Agreements
Schedule Of Finite And Indefinite Lived Intangible Assets [Line Items]
Finite-lived intangible asset, Cost/Fair Value	4,650	4,650
Finite-lived intangible asset, Accumulated Amortization	1,836	1,173
Finite-lived intangible asset, Net	2,814	3,477
Polymed Customer List
Schedule Of Finite And Indefinite Lived Intangible Assets [Line Items]
Finite-lived intangible asset, Cost/Fair Value	1,593	1,593
Finite-lived intangible asset, Accumulated Amortization	873	675
Finite-lived intangible asset, Net	720	918
Polymed Technology
Schedule Of Finite And Indefinite Lived Intangible Assets [Line Items]
Finite-lived intangible asset, Cost/Fair Value	3,712	3,712
Finite-lived intangible asset, Accumulated Amortization	930	762
Finite-lived intangible asset, Net	2,782	2,950
Product Rights
Schedule Of Finite And Indefinite Lived Intangible Assets [Line Items]
Finite-lived intangible asset, Cost/Fair Value	530	530
Finite-lived intangible asset, Accumulated Amortization	231	132
Finite-lived intangible asset, Net	$ 299	$ 398